"Shipping day" a phrase the video game industry tolerates. In the movie industry there is a "street day" in which everyone in the region can purchase the movie on DVD and stores that sell movies before this day can lose their license. Shipping days allow people on the coast to open their games up a day before the rest of the states.
I'm going to rent this one. I was planning on playing it all summer, but guess what... it was delayed like crazy. So this whole summer I've been treated to 0 of the games that I was looking forward to playing. More I see on this title, the more the zombies look pleasant instead of vicious. I wouldn't mind buying a zombie game that had killer zombies and some co-op.